I don't have any gaming merchandise unless you count a guide book as merchandise. The only thing that I have is a Grand Theft Auto V guidebook that I decided to get when GTA V first came out on the 360 and Ps3. The funny thing is that it's completely useless to me and something I've never properly used lol.
I too don't have any merchandise, but thought to get one for GTA Vicecity, however I left the game because of got involved in some other business.
I see you too had bad experience with these merchandise.